[klibc] header: Fix missing <sys/socket.h> include

Found by autotools while configuring util-linux with
 ./configure  --without-ncurses  CC=klcc
against klibc-1.5.23 version. It would complain:

configure: WARNING: net/if.h: present but cannot be compiled
configure: WARNING: net/if.h:     check for missing prerequisite headers?

configure: WARNING: sys/un.h: present but cannot be compiled
configure: WARNING: sys/un.h:     check for missing prerequisite headers?

This where the only two and it both cases sa_family_t def seemed
missing.

Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: maximilian attems <max@stro.at>
2 files changed